Reel



Feb- 5, 1952 w. F.l DALRYMPLE REEL 3 Sheets-Sheet l Filed July 22, 1948 Ill!! E n.m Y E R V NI- I ADA d R m M m uw W B NN sm .O

ATTORNEYS 3 Sheets-Sheet 2 W. P. DALRYMPLE REEL INVENTOR. WILLIAM P DALRYMPLE ATTORNEYS MMO. 1J

Feb. 5, 1952 Filed July 22, 1948 Feb- 5; 1952 w. P. DALRYMPLE REEL 3 Sheets-Sheet 3 Filed July 22, 1948 INVENTOR. WILLIAM P. DALRYMPLE BY J ATTORNEYS Patented F eb. 5, 1952 J,

REEL i' a vvilhaili Pf'aiymme'mchstr, N; Y., assigner to American Brake 'Shoe Company,` New York,

N. Y., a corporation `ofiDelaware Application July 22, 1948, Serial No. 40,121

shops, automobile service stations and similar places, it is .highly desirable to store electric lights cords, air hosesand otherlike exible members in such amannezr that, when stored,

they are out of therway and vpresent a neat,y

pleasing appearance d, but are Valso readily., accessiblefor use, and it is a primary, objeCt ofmy invention to enable this toy be accomplished in a novel and expeditious -manneny 4 v y A further object of my invention is to provide a novel reel from which the exible members may be readily unwound and onto which they may be automatically rewound atvthe will of the op-` erator, andvwhich is compact in formi, and may be readily and economically manufactured.

' Another object of my inventionis to rconstructa reel for exible members which embodies novel means for holding the reel against rewinding so that when the operator has withdrawn a selected length of the exiblemember from the reel for use it will not be necessary for him rto manually holdthe exible member from beingA rewound onto the reel.v i n, l i

An object ancillary to the foregoing is to .construct a reel in such a manner vthat wheny itfis desired to rewind the `withdrawn portion of the flexible member this; may be readily, accomplished by further withdrawing ythe iiexible.: member slightly from the reel andquickly releasing the same to thereby release the novel reel holding, means and freeing the reel to automatically re-y wind the exible member thereon. n a

A further object of my invention is to construct a reel wherein'the holding means may. be rendered effective to hold the reel againstrewinding at any point in the 360 of rotation of therreel. Y a .A Y

Another object of my invention isv to construct a reel which will operate efliciently in the aforesaid manner with the axis of rotation of the -reel disposed in any position. 1

A further object of my inventionis to construct a reel for flexible members wherein the rewinding speed of the reel is controlled in a novel and expeditious manner, 4and an object ancillary to the foregoing is 'tofprovidefareel for flexible members wherein lthe-winding and unwinding. speed of the reel, is .controlled by friction members which are operated by the Claims. (o1. 299-78) LSF-'centrifugal force created by the rotation of cer tain control members, and wherein these same friction members may beiutilized to releasably hold the reel in stationary position against rewindingwhen it is desired to use a portion'of a flexible member withdrawn from the reel.

AA further object of my invention is to enable y a reel of the aforesaid type to be constructed in such a manner that the friction members which' are utilized to control the winding and unwinding speed of the reel and to releasably hold the reel against lrewinding, are "eective soV to 'do through their engagement with a common brake drum.

Y Another object of my invention is to construct a reel of the aforementioned type in such a manner that,when` the friction members are utilized to hold :the reel against re-winding, the forces induced kupon the friction elements by their frictional engagement with the drum are eiectiveto, in effect,l self-energize the friction' members to, thereby increase the force of the frictional engagement of these friction members with the drum and thereby increase the force by' which the reel is held against rewi'nding" rotatin. i

Yet a further object of my invention is to prevent the reel from being secured in stationary position by the friction members when more than a predetermined amount of the exible member has beenY withdrawn from the reel.

vA further object of my invention is to so con` -struct Va reel of theabove mentioned type that the speedcontrol therefor may be' adjusted.

Another object of my invention is to construct a reel which may be used with air hoses'and the like and wherein the now of working fluid to the hose may be automatically controlled in' a` novel and expeditious manner so that it is shut 01T therefrom when the hose isv fully wound on the reel and will'flow thereto only when the hose has been unwound'from the reel a predetermined amount. Y

Qtherand'further'objects of the present invention will be apparent from, the following description and claims andY are illustrated in the accompanying drawings which, by way of illustration, show preferred embodiments and the principles thereof and what I now consider to be the best mode in which I have contemplated applying those principles. Other embodiments ofthe invention embodying the same orv equivalentr Vprinciples may be used and structural changes may be made vas desired by those skilled in the Yart without departing fromvthe present invention and the purview of the appended claims.

In the drawings:

Fig. 1 is a front elevational View of an air hose reel embodying the principle of my invention;

Fig. 2 is aside elevational View of the reel shown in Fig. 1, with portions broken away to show certain internal parts thereof;

Fig. 3 is a Asectional View taken substantially along the line 3-3 in Fig. 2;

Fig. 4 is a detail sectional view taken substantially along the line 4-4 in Fig. 3;

Fig. 5 is a detail sectional view taken substantially along the line 5-5 in Fig. 3;

Fig. 6 is a detail View of a modified form of my invention;

Fig. 7 is a sectional View similar to Fig. 3 but showing another modified form of my invention; and

Fig. 8 is a detail sectional view taken substantially along the line 8-8 in Fig. '1.

Figure 9 is a detail view of the nut rotation restraining mechanism. Y

The selected embodiment of my invention shown in the accompanying drawings comprises, in general, a spool 20, Fig. Brotatably mounted on a spindle 22 within a casing 24. A exible member'such as an air hose 28 may bewound on, or unwound from, the spool 20, the ,flexible member, during the winding or unwinding operations, passingthrough guide rollers 30 carried by a bracket 34 adjacent to an opening 40 formed in the casing 24.V Two levers or arms 41 and 48, Fig..2, are attached to the spool 20 by pins 50 and 5|, respectively, for rotation therewith. Two friction elements or brake shoes 44 and 45 are carried by the respective levers 41 and 48 and are adapted to engage the peripheral edge portion of a drum or housing 53, non-rotatably securedto the casing 24 by bolts 55, to' thereby control the winding and unwinding speed of the spool 20 and, when desired, to hold the spool in stationary position as willbe presently described in greater detail.

The casing 24 comprises two substantially cupshaped members 51 and 58 lthat abut each other at their peripheral edgeportions 59 and 58|, respectively. The shaft 22, having a head 60on one end thereof, extends through openings 62 and 63 formed in the casing members 51 vand 58, respectively, and through an opening 65 formed in a mounting bracket 66 for the casing24, and has a nut 68Y screwed onto the other end thereof vfor holding thev two casing members 51 and' 58 together. Y

The mounting bracket 66 is substantially L- shaped in character having two legs and 1I. rlhe leg 10 is secured to the member 58 of the casing 24 by four bolts 13 screwed into bosses 15 projecting inwardly from the side wall of the casing member 58, and is further secured to the casing member 58 by the aforementioned bolts 55. The

other leg 1| of the mounting bracket 66 has two openings 11 formed therein through which suitable fastening members, such as, for example, bolts, may be extended to secure my novelreel to any suitable supporting member suchas, forexample, a ceiling, wall, or floor, my novel reel being adapted to operate eiciently in any position as will be discussed in greater detail hereinafter.

The spool comprises a hub 80, journaled on the shaft 22 and having a peripherally extending ange 8| to whichtwo side plates 83 and 84 are connected by any suitable means such as bolts as. The side piatesaa `and s4 form the side walls of the spool 20 and the peripheral edge portions of these side plates are turned over to form flanges 86 and 81 to thereby present a rounded peripheral edge. The hub of the reel 28 engages the hub portion 90 of the drum 53 on one side and is thereby spaced from the cupshaped member 58 0f the casing 24,., On the other side the hub 80 spaced: from the cup-shaped member 51 of the casing 24 by a sleeve 92 ,mounted on the spindle 22.

A spiral spring 94, Figs. 2 and 3, is mounted within the drum 53 around the shaft 22 and has its inner end portion anchored in a notch 96 formed inthe hub 80 of the spool 20, and the .outer endpprtion thereof is anchored in a boss 98 in the non-rotatably mounted drum 53. The clock spring -94isdisposed in the drum 53 in such a manner vthat upon clockwise rotation of the spool 20, as viewed in Fig. 2, the spring tends to tightenV or wind up so that when the spool 20 has been rotated in a clockwise direction to withdraw a portion of a flexible member such as the air hose26 therefrom, the spring 94 is effective to urge the spool 20 in a counterclockwise direction to thereby again wind Athe withdrawn portion of the rflexible `member onto the spool 20 as will be discussed lin greater detail presently.

As is best seen in Fig. 2, the levers 41 and'40 have short end vportions'41Sfand 48S, respectively, and long end portions-ML and 48L, respectively, the latter end portion having counterweights |00 and |0| formed thereon forv a` purpose which will be presently discussed. The short v'end portion 41S of the lever 41 and the long end portion 48L ofthe lever -48 are connected `together by a suitable tension spring |03, and

the long end portion 41L and the short end portion 48S Vof the respective levers are connected together by a link|04. Y

The friction elementsVV or brake shoes, 44 and 45 are connected to the levers 41 and ,48 by hangers |05,v and |06, each -of which is formed of suitable material'such as; for example, a continuous strip of spring steel forming respective pairs of'side arms |01 and '|08 the ends of which are connected together by suitable transverse members. The side arms |01 yand |08 ofthe hangers |05 Yand |06,'respectively, rest on the hubs 46 and 49 of the levers 41 and 48. One transverse member of the hanger |05 extends across beneath the short end portion 41S of the leverl 41, Vandthe other transverse-member thereof extends through a loop 55 formed on the backing member56 ofthe brake shoe 44 and positroneo below the long end portion 411. ofthe lever 41. Similarly, one transverse member of the hanger |06 extends across, beneath the short end portion 40S of `thelever 48, and the other'transverse member thereof extends through a loop 58 formed on the backing member 59 of the brake s hoe44 and positioned belowthe long end portion 48L of the lever-'48. Thus, it will be seen that the ybrake shoes 44 and 45 are supported from 'thev levers 41 and48,'respectively, by a resilient rocking connection which aords a freedom of movement whereby-the brake shoes mayA adapt themselves for different conditions of operation. Also it will be noted that'the connection between thehangers |05 and |06 and the brake shoes 44 `and 45fis made on the side of the pins 50 andl closest to the'respective counter- Weights |00 and |0| and that, therefore, the actionY of the spring |03 is effective to urge the brake shoe 45 towardengagement with the drum 53.

tiongon my kreel ashor't end portion Vis left ex-` tendingv therefrom. This may be assured by fastening 'a stopping member, not shown, to the free-end 'portion of the flexible member '23, this stopping member being of sufficient size so that it will not pass between the rollers 30 and being anyone `of several types which are well known to the artsuch as, for example, a-rubber ball such asthat commonly used on air hoses and the like.

Thus, lwith a portion of the flexible member` 26 always extending from the casing 24, when it is vdesired to withdraw. a portion'of the flexible member from the `spool 20 for use, the operator may grasp the extending portion and pull thereon. This pulling of the iiexible member 25 causesthe spool 20 to rotate in a clockwise ldirection 'as' viewed in Fig. 2 and thereby causes the' friction'elements 44 and 45 to rotate ina clockwise direction with respect to the drum 53. The centrifugal force set up by the rotation kof the counterweights 'and |0| with the spool 20 causes the levers 41 and 48,` respectively, to tend to "pivot in a clockwise direction as viewed in Fig. 2 on their fulcrum points '50 and 5| and thereby tends to raise the friction elements 44 and 45 out of contact with the drum 53. Two adjustable stop members such as, for example, screws |05 and ||0 are mounted in the short end portions 41S and 48S of the leversr 41 and `48, respectively, in' alignment with the brake shoes 44 and 45 and may be adjusted toward and away from the brake shoes 44 Vand 45 by screwing them into and out of the levers 41 and 48 for a purpose which will be discussed presently. Suitable lock nuts and ||3 are mounted on the screws |09 and I I0 to hold them in adjusted position on the levers 41 and 48.

As hereinbefore mentioned, when the operator pulls on the protruding end portion of the ilexible member 2'6 and starts the spool 20 rotating in a clockwise direction, as viewed in Fig. 2, the centrifugal force set up by the rotation of the counterweights |00 and |0| rst tends to lift the brake shoes 44 and 45 out of engagement with the drums 53, and thereby permits relativelyl free rotation of the spool 20. As long'as the rotation of the spool 20 does not exceed a predetermined speed this free rotation isvcontinued. I-Ioweverv if the rotation of the spool 20 does exceed a predetermined speed, as determined -by the adjustment of the stops |09 and ||0, the additional centrifugal force created by this excessive rotation of the counterweights |00 and |0| ,causes the levers 41 and 48 to rotate upon their pivot pins 50 and 5|, respectively, suiciently to cause the stop members |09 and I0 to engage the backing members.Y 513 and 59 of the brake shoes 44 and 45 andthereby press the brake shoes 44 and 45 inwardly against the drum =53 to retard the rotation of the spool 20. Thus it will be seen that when the spool 20 is in stationary positionvthe spring |03 tends to hold the friction elements 44 and 45 in engagement with the drum l53 and thereby hold the spool 20 in stationary position. This holdinggforce of the brake shoes 44 and 45 is overcome Vby centrifugalforce set-up by normal rotation of the counterweights |00 and |0|, but the brake shoes44 and 45 are again effective to engage the drum'53-to retard the rotation of the spool 20 if this rotationexceeds a predetermined speed.

When a portion of the flexible member 26 has been withdrawn for use lfrom the `reel in theman-gl ner hereinbefore discussed, it is desirable that the yspool 20 be held against rewinding rotation while the flexible member is in use sothat the.

operator will be relieved of the strain and rinconvenience of manually holding' the exible member against rewinding. In my novel reel this holding of the spool 20 in stationary position is expeditiously performed by the'brake shoes 44 and 45. Thus it will be seen that when the proper amount of the exible member 2.6 has been withdrawn from the spool and the spool 20 is stopped,V

the spring |03 causesV the levers 41 and 48 to rotate on their fulcrums 50 and 5|, respectively, and thereby urges the brake shoes 44 and 45 into frictional engagement Iwith the drum *53. A1- though the spring 94 tends to cause the spool 20 to rotate in a counterclockwise direction, as viewed in Fig. 2, to thereby rewind the flexible member 26 upon the spool 20, the frictional engagement of the brake shoes 44 and 45 is sufficient to hold the spool 20 in stationary position against the urging of this spring. In this connection it will be noted that because of the manner in which the brake shoes 44 and 45 are pivotally mounted upon the levers 41 and 48, the urging in a counterclockwise direction of the spool 20 by the spring 94 tends to drag the brake shoes 44 and 45 into tighter engagement with the drum 53, to thereby, in effect, self-energize thel brake shoes 44 and 45 and assist the spring |03 in urging them into tight frictional engagement with the drum 53 to hold the spool 20 from rotating in a winding direction.

When it is desired to again rewind the withdrawn portion of the iiexible member 26 upon thereel 20 this may be readily accomplished by pulling sharply on the protruding portion of the flexible member 26 and then quickly releasing it.

The sharp pull on the iiexible member 26 causes the spool 29 to rotate in an unwinding direction at a relatively high speed vand thereby causes the counterweights |00 and |0| to be thrown outwardly to unseat the brake shoes 44 and 45 from the peripheral edge portion of the drum 53. When this short rotation is abruptly stopped, as by the operator quickly releasing the flexible member 26, the inertia of the counterweights |00 and |0| tends to hold the counterweights |00 and |0| in their outward position and thereby delays seating of the brake shoes 44 and 45 against the drum 53. Before the spring |03 is effective to pull the counterweights |00 and |0| in toward the drum 53 the spring 94 is effective to start counterclockwise o r winding rotation of the spool 20 to thereby exert centrifugal force on the counterweights |00 and 0| and maintain these counterweights in an outward position and thereby hold the brake shoes 44 and 45 away from the drum 53. vAs was previously discussed with respect to the unwinding rotation of the spool 20, as long as the winding speed of the spool 20 remains below a predetermined limit the winding of the spool 20 is relatively free. However, if this predetermined speed is exceeded the counterweights |00 and |0| are thrown outwardly by centrifugal force to such a position that the adjustable stops |09 and H0. engage the backing members 5'6 and 59 of the brake shoes 44 and-45 and thereby urge the brake shoes 44 and 45 into engagement with the drum 53 to thereby control the speed of the spool 20. Thus it will be seen that by proper adjustment of the stops |09 and ||0 the winding and unwinding speed Vof .the spool 2n may be regulated so as to remain withinzthe predetermined VIt will be noted that Vwhen a portion of the flexible member 26 has Abeen extended and it is desired to rewind this portion upon the spool 20, it is essential, in order to accomplish this properly, that a sufficient amount of the Aflexible member 26 still remain on the spool 20 so that the spool 20 may be caused to rotate in an unwinding direction .by pulling on the extended portion of the flexible member.V To assure this, I have provided a release lever H2.

|The releaseY lever H2, Figs. 3 and 4, has a centralbody portion |f3 and two oppositely disposed legs |-5 and li projecting transversely therefrom. The body portion ||3jof the release `lever |-|2 is pivotally mounted on the pin 59 carried by the spool Y2 0, and the leg .H6 extends through slots l|8 and I9 formed in the side plates 83 and 84.

of thespool 20, and is positioned between the first and second of the innermost convolutions of the -iiexible member 26. The outer leg H5 of .the release lever extends over the shortvend portion 41S of the lever 41.

Thus, as is best seen in Figs. 2, 3 and 5, it will be noted that when all but one of the convolutions of the flexible member v26 have been unwound from the spool 20 further unwinding of the .flexible member 2,6 therefrom will cause the exiblemember to pull outwardly on the leg H6 ofthe release lever H2 and thereby cause the release lever H2 to rotate `in a clockwise direction as viewed in Fig. 2. This rotation of the release lever vin a clockwise direction Ywill cause the leg. 1| i5. to engage the short end portion 41S of the lever 41 and thereby pivot the lever 41 in a clockwise direction on its pivot pin 5| to thereby thev brake shoe 44 out of engagement with the drum 53. Likewise this clockwise rotation of the lever 41, because of its connection through the link |64 with the short end portion 48S of the lever 49 will cause the lever 48 to be rotated in a clockwise diretion on its pivot pin 5| to thereby raise the brake. shoe 45 out of engagement with the drum 53. Thus it will be seen that with my novel device when the amount of the flexible member 2'6 remaining on the spool 255 is not sufcient to readily release the friction elements 44 and 45 from holding engagement with the drum 53 vby pulling on the flexible member and then quickly releasing it, the brake shoes 44 and 45 are maintained out of such holding relation with the drum 53 by the `release lever H2. The release lever H2 is, therefore, effective to insure that when the brake shoes 44 and 45 are in holding engagement with the drum 53, during normal operation of my novel reel, a suiiicient amount of the flexible member 26 remains on the spool 20 to effect release of the brake shoes 44 and 45 in the normal manner.

Although it will be understood that my novel reel may be used with flexible members other than air hoses, the embodiment of my invention shown in the accompanying drawings comprises a reel which is especially adapted for use with air hoses, such as for example, the type commonly used in automobile service stations for inflating tires. Thus as best seen in Fig. 3, I provide an air inlet pipe |22, one end of which may be con` nected by a supply line |24 to a suitable source of compressed air, `and the other end of Vwhich is connected to a nipple |26 extending through the sleeve 92 and screwed into the spindle 22 into communication with a passage |28 extendinglongitudinally vthrough'the spindle. Vtime end lof the passage |28 is sealedby .a suitable plug |30 screwed'thereinto and the other .end portion of the passage |28 is in communication with a transversely extending passage |3| by which it is connected to afgroove |33 formed in the peripheral edge portion of the spindle 22. A passage |35, Fig. 5, isv formed transversely in the hub 80 of the spool 20 and is in communication with the groove |33 formed .in the spindle22. A suitable Vconnecting nipple |31 on the inner end portion of the air hose 26 is screwed into the flange "8| of the hub .80 into communication with the passage |35l so.r that air maybe fed from the source -of supply through the pipe 22, the nipple |26, the passage |28,..the `passage, |'3|, the groove |33., the passage |35- and. the nipple |31 to the airhose 26.

vA second longitudinally extending passage |39 is provided in the spindle 22 .and one end thereof is sealed by a suitable plug |4I. An oiler |43 extends through the `sleeve 92 and transversely into the spindle 22 where it isin communication with the longitudinally extending passage |39. The inner end portion ofthe passage |39 is in communication with two grooves and |46 formed in the peripheral edge portion of the spindle -22 on opposite sides of the groove |33 so that oil or other'suitable lubricant `may be supplied from the oiler |43, through the passage"|39 and the grooves |45 .and |46, into the space between the spindle 22 and the hub to'lubricate the connection therebetween. VTwo packing rings |48 and |49 are lsuitably mountedin grooves formed in the spindle 22 on opposite sides of the groove |33 to prevent oil or grease from passing from the grooves |45 and v|46 into theia'ir passage or groove |33.

InFig. 6 isv shown Va modied'form of my invention wherein a dash pot |60 is utilized to assist in maintaining the brake shoes 44 and 45 out'of engagement with the drum 53 during the release of the spool 20 from stationary position for the purpose of Vrewinding awithdrawn portion vof the flexible member 26. Thus, it will be noted that I 'have shown a .dash pot |60 comprising a cylinder. |62 attached to the short end portion41S of the lever 41,V and a piston |64 attached to the counterweight 10i. The piston |64 .is reciprocally mounted in the cylinder |62 and has a head '|65jthereon having openings V|61 and |68 in the inner'wall thereof and an opening |10 in theouter wall thereof.V The opening |10 is in communication with the hollow stem |12 of the piston |64 which stem is in communication ywith the atmosphere, and a suitable check valve such as for example a ball Y|14 is mounted in the hollow head |65 of the piston :|64 in such a manner as to permit substantially unrestricted passage of air from the stem |12 of the piston through the openings |10, |65 and |68 into the cylinder |60 but to restrict thereverse ilow therethrough. Thus it Will be seen that when, as previously discussed, it is desired to release the yspool 2'0 for automatic rewinding of the flexible member 26 by the spring 94 and the protruding portion of the flexible member l26 is, therefore, pulled-sharply, the dash pot N-creates little resistance to the outward movement ofV the counterweights |00 and |0I,V but when the flexible member 26 is then quickly released to permit rewinding of the spool 20 the dash pot fis effective to restrain the counterweights |00 and |0|=from swinging inward and thereby assists in restraining the'engagement` of the brakexs'hoes 'i4-and 45-with-the drum 53wliile valve V to be closed.

the spool 20 is gaining'sufficient speed `that the counterweights and 0| willbe held inoutward position by centrifugal force.

In Figs. 7, 8 and 9 is shown another modification of the novel hose reel .shown in Figs. 1-5 whereby regulation of the supply of air to the flexible member or air hose 26 may be automatically effected in such a manner that the hose will not be under pressure when it is fully rewound upon the spool but will be under pressure only when the hose 26 is extended from the spool 20 into position of use.

The portions of the reel shown in Fig. 'lwhich are the same asv the portions of the reel shown in Figs. 1-5 yinclusive are indicated by the same reference numerals and those portions which are similar to portions shown in Figs. 1-5, but which have been modified are indicated by the same reference numerals with the suiiix, a, added thereto.

It will be'noted that in Fig. 'l the spool 20 is '.journaled on a spindle 22 within a casing 24a which casing comprises two substantially cupshaped members 51a and. 58. The cup-shaped member 51a has been modified to provide attaching flanges |80 and |8| to which a base plate |83. of a housing |84.for a metering valve |85 may be attached by Asuitable means such as rivets |86, the metering valve |85 affording means for controllingV the feeding of air from a supply line |90, Fig. '7, to the air hose 26, as will be discussed in greater detail presently.

The air metering valve |85 comprises an air service device of the same general type disclosed in United States Letters Patent No. 1,918,612.

granted to Albert Penn on July 18, 1933, and which is operable to feed air to a receptacle in a series ofv relatively short successive charges until the pressure in the receptacle has been raised to a predetermined amount, at which time the air metering valve-is automatically closed and thereby rendered vinoperative to feed more air to the receptacle being inflated.v I make no claim to the metering valves, l.per se, as embodying the present invention except insofar as it forms a part of my novel combination.

In general, the air kmetering valve |85 comprises a crank or handle H by which an operator may manually adjust or set a regulating mechanism R, an indicator dial D, visible through an opening N in the housing |84, affording visible indicia for determining the setting to which the regulating mechanism has been adjusted. The regulating mechanism R is operatively connected to a lever L which forms a part of an actuating l mechanism M which is operable to open and close a valve V connected between the supply line |90 and the air hose 26 as will be presently described. The lever L is pivotally mounted on a pin |81 and is-operable upon rotation in a counter-clockwise direction, as viewed in Fig. 8, to open the valve V, and upon rotation in a clockwise direc- .tion to effect closing of the valve V'.

A pressure sensitive mechanism P is operably connected to the lever L of the actuating mechanism M, in opposition to the regulating mechanism R, and is effective, as will be presently discussedV in greater detail, when the pressure in the service hose 26 and the receptacle being inated reaches a predetermined pressure, as determined by the setting of the regulating mechanism R, to effect valve closing operation ,of the actuating mechanism M and thereby cause the The air inlet linefl90'is connected through a closes, the pressure in the hose 26 again drops condensing chamber C and a coupling member |92 to the inlet side lof the valve V. The outlet side of the valve V is connected by a coupling member |94, a T-tting |95, and a coupling member |96 to the air inlet pipe |22, the inlet pipe |22 being connected to the air hose 26 in the same manner as previously discussedin reference to the hose reel shown in Figs. 1 tov 5, inclusive. The other leg of the T-tting |95: is connected to the pressuresensitive device P to thereby subject the pressure ,chamber .ofvv the pressure sensitive device to the pressure in the air hose 216 and the receptacle being inated.y

Two pins |98 and |99 form abutment members limiting the pivotal movement of the lever L, the lever L engaging the pin |98 when occupying valve-closing position and engaging thepirr |09 when occupying valve-opening position.

During a receptacle-inating operation the hose 26 is connected to the receptacle being inated. When this occurs the air in the hose 26 flows into the receptacle causing the pressure in the pressure sensitive mechanism P to drop and thereby allow the regulating mechanism l.R to cause the lever L to move in a counter-,clockwise direction, as viewed in Fig. 8, .to t hereby open the valve V. When ythe valve .V'opens,; air ows therethrough from the line into the hose 26 and thus into thereceptaclebeing--fm ated; This causes the pressure in the hose126 and, therefore, in the pressure sensitive-device P, to be increased so that the pressure sensitive device P is actuated thereby and causes' the ilever L to move in a valve-closing directionl to thereby close the valve V. When the valve V as air flows therefrom y,into the receptacle being inated and the valve V is againopened bythe action of the regulating mechanism R onthe lever L in the manner' discussed `above-These cycles of .alternately opening andl 'closing vof the valve V are repeated in this manner until., the pressure in the receptacle is;;in'creased .to-,that pressure corresponding to the setting ofthe regulating mechanism R, -at which timel the pressure in the hose 26 and the T- f'ltting |95, and, therefore, in the pressure sensitive device P, remains at a sufliciently high amount to hold .the lever L in valve-closing position and thereby air to the receptacle automatically render the meteringv valve effective and ineffective to feed air to the hose 26 in accordance with the position of the hose 26 on the spool 20. These means include an articulated bell crank. lever 200 operable to be automatically moved by mechanism, which will be discussed in greater detail presently, intoand out of latching engagement with the lever L in accordance with whether the reel 20 is disposed in wound or unwound position, respectively. f

The bell crank lever v200 has three legs 202,204 and 206, -and is pivotally mounted by a pin 2- 08 on a bracket 2|0 projecting linwardly from-the base plate |83 of the housing |88. `The leg-206 has an extension' 206C pivotallyconnected therev to by `a' pin 201, a-spring 209 and an adjusting esegue l1 into and out of engagement between the lever L andthe pin |99 upon rotation of the lever 200 on the pin 208. When the ear 20010 is positioned between the lever L and the pin |99, it is effective tov positively hold the lever L in valve-closingY position against the pin |98 and thereby render the metering valve |85 inoperative to feed air to the hose- 26. However, when the ear 20E-w is disposed out of engagement between-the lever L and the pin |99, the lever L is free to pivot in anormal operation of the metering valve |85.

thecasing member 51a by suitable means" such as screws225f. d A torsion spring 221, having one end engaged with the 1eg222` of the mounting bracket 223 and the other end engaged with the lever 2|8, urges the lever 2|8` in a counter-clockwise direction as viewed in Fig. *7S toward engagement with the stop screw 2|2 carried by the lever 200. A coil spring 229 connectedV between the leg 292 and the base platel |83 is effective to hold the adjusting screw 2|2 on the vleg 206 infyielding engagement with the face vof the free end`2 |4 of the lever 2 I8, the face of the free end 2|4 being disposedV at an oblique angle to the pin 2|2 for a purpose to be discussed in greaterdetail presently.

The hub 80 of the spool20 has an elongation 23| formed thereon which has screw threads 232 formed on its outer peripheral surface: 233-having slots 234, Fig. 9, in the outer peripheral edge portion thereof is screwed onto the threads 232 of the hub 80. The leg 222 of the bracket 223 is adapted-'to engage in any desired one 'of the slots 234 toV thereby hold the-nut233 from turning. Thus it will be seen that as the spool 20 is rotated in a winding direction the nut 233 through its engagement with the threads 232l will be-caused to move in toward theside plates 33 and 84 of the spool 20. On the other hand, when the spool 20 is caused to rotate in an unwinding direction the nut 233 will be caused to move' outwardly from the sideY plates 83 andv 84.

The bell crank lever 2|8 has a leg 231 which projects atright angles from the leg 2 I6 into the path of movement of the-nut 233 along the extension 23| of the shaftV 80. Thus it will be seen that during an unwinding `operation of the reel 20, whereby the nut 233 is moved outwardly along the shaft 80, the-nut 233 moves into engagement with the leg 231 and is effective to rotate the lever 2| 8 in a clockwise direction, as viewed in Fig. '1, against thel urging of the torsion spring 221.v Such rotation of the lever 2|8 m-oves the free end 2|4 thereof upwardly relative to the adjusting screw 2 l2 and permitsthe lever 200 to be turned in a clockwise direction by the spring 229 to thereby move the ear 2061.0 out of latching position) relativeto theV lever L and thereby frees the metering valveV |85 for an air feeding operation.

Duri-ng a re-winding operation ofthe reel 20, the-nut 233V is moved back in toward' the reel 20, as previously discussed, and is thereby moved A nut' out of engagement with the. leg 231 of the lever 2|8. Thismovementof the nut 233 permits the torsion spring 221, which is stronger than the. coil spring 229, to turn the lever 2|8 in a counterclockwise direction to. thereby cam the lever .200 in a counter-clockwise direction intolatching engagernent with the lever L and effect positive closing of the metering valve |85. A stop screw 249 is adjustably mounted in the leg v294 of the lever 200 and is adapted to. engage the base plate |83 of the housing |80` to afford adjustable means for limiting the counter-clockwise rotation of the lever 200.

In my novel -hose reel,.the` mechanism for actuating the lever 2|8 may be readily set to effect valve-closing operation of the lever 200 atv substantiallyv any desired point in the re-'winding actuation of the-reel 20. This may be accomplished during the assembly of the reel 20'in the housing 24a by properly pre-positioning the nut 233 on the extension`23| of the shaft 80 before the leg 222* of the bracket 223 is engaged ina slot 234 in the nut 233. For example, it will be seen that if it is desired to-'elfect latcliing and unlatching of the lever L atsubstantially the fully wound position of the reel '20, the nut 233 will be positioned on the shaft 80 so as to be substantially adjacentl` tothe leg'231 when the reel 20 is in fully wound position so that relatively little rotation of the reel 20 is required to move the nut 233 into and out of engagement with'the leg 231. However, if it is desired to effect latching and unlatching of thelever L at a point inthe rotation of the reel 20 wherein the hose 26 is partially unwound therefrom, vthe nut 233 will be initially positioned a greater distance away from the leg 231 so that a greater rotation of the reel will take place between fullyy wound position thereofy and the position at which the nut 233. engages the leg 231; i

The articulated construction of the bell crank lever 200, it will be noted, affords protection against accidentalinjuryV to the metering valve during movement of theV lever 200 into latching engagement'between the lever L and the pin |99. Thus, for example; if during a movement of the lever-200 toward latching engagement with the lever L, the lever L is in valve-opening position so'that the ear 20Sw strikes the side thereof, the extension'205c is free to swing outwardly on its pivot' pin 231 against the urging of the spring 239 until such time as the lever L moves toward valve-closing position, at which time the spring 239 urges the ear 206W into latching engagement with' the lever L and the pin |99.

From the foregoing it will be seen that I have provided a novel and practical reel for flexible members, `such as air hoses, electric light cords and the like, which is sturdy and compact, may be economically manufactured, operates in a novel and expeditious manner, and the performance of which isV more flexible and more readily adapted to various conditions than reels heretofore known tothe art.

Thus, whileI have illustrated and described the preferred embodiments of my invention, it is to be understood that these are capable of variation and modification and I therefore do not wish to be limited to the, precise details set forth, but desire to avail myself of such changes and alterations as fall 'within the purviewl of thefollowing claims:

I claim: 1. A reel for flexible members comprising a spindle, a spool for holding loops of such a flex- 13 ible member, said spool being mounted on said spindle for rotation thereon in a winding and an unwinding direction, means urging said spool in a winding direction, a stationary member mounted concentrically of said spindle, braking 5 means pivotally mounted on said spool and normally frictionally engaging said station-ary member to releasably hold said spool in predetermined Aposition against the urging of said first named means, spring means urging said braking meansA l toward engagement with s-aid stationary member, and actuating means connected to said braking means operable upon rotation of said spool in an unwinding direction at less than a predetermined speed to move said braking means yaway l from engagement with said stationary member, said actuating means being operable upon rotation of said spool in an unwinding direction at more than said predetermined speed to move said braking means into engagement with said stationary member. Y

2. A reel comprising a spindle, a spool rotatably mounted on said spindle for turning in either a winding or unwinding direction, a drum connected to said spindle, a lever fulcrumed on said 25 spool for rotation therewith, a friction element carried by said lever, and a spring connected to said lever for urging said friction element toward said drum, said spring being eifective when said spool is stationary in an unwound position to '3 engage said friction element with said drum and thereby hold said spool in said position, vsaid lever being so disposed relative to said friction element to be eiTective when said spool is rotated in an unwinding direction at less than a 3 predetermined speed to urge said friction element away from engagement with said drum and effective when said spool is rotated at greater than said predetermined speed to urge said friction element into engagement with said drum.

3.v A reel for holding a flexible member wound thereon, comprising a spindle, a spool rotatably mounted on said vspindle for turning in either a winding or unwinding direction, a spring connected to said spool for turning it in a winding direction, a substantially circular-shaped drum nonrotatably connected to said spindle and having an outer peripheral edge portion, a lever fulcrumed on said spool for rotation therewith, a-V

friction element carried by said lever, and a spring connected to said lever and eiective when said spool is stationary in an unwound position to frictionally engage said friction element with said peripheral edge portion of'said drum f01if55 fective on said brake member to engage said holding said spool in said position, a portion of said lever being so connected to said spool to be effective when said spool is rotated in an unwinding direction at less than a predetermined speed to urge said friction element out of engagementfo with said peripheral edge portion of said drum to thereby tend to free the rotation of said spool, another portion of said lever being so disposed relative to said friction element to be eiective when said spool is rotated at greater than said/ predetermined speed in either direction to press said friction element into engagement with said peripheral edge portion of said drum to thereby tend to retard the rotation of said spool.

.4. A reel for holding a flexible member wound:

ried by said spool for rotation therewith and -v '14 adapted to operably engage said drum when said spool is stationary in a predetermined position to hold said spool in said position, spring means `for urging said brake member into operable engagement with said drum when said spool is in said predetermined position, and control means operatively connected to said spool and rotatable therewith for controlling said operative engagement of said brake member with said drum, said last named means being responsive to centrifugal force and movable thereby through a predetermined path of movement when the speed of rotation of said spool in an unwinding direction is greater than one predetermined amount and less th-an another predetermined amount, said last named means being movable by centrifugal force through another predetermined path of movement when the rotation of said spool in either an unwinding or winding direction is greater than said other predetermined amount, means operatively connecting said control means to said brake member for urging said brake member out of said operative engagement with said drum during movement of said control means through said first mentioned predetermined path, and means operatively connecting said control means to said brake member for urging said brake member into said operative engagement with said drum during movement of said control means 0 through said other predetermined path.'

5. A reel for supporting a flexible member wound thereon, comprising a spindle, a spool rotatably mounted on said spindle for turning in either a winding or an unwinding direction, a

5 drum connected to said spindle, a br-ake member `brake member into said operable .engagement with said drum when said spool is in said predetermined position, and control means con# nected to said spool and rotatable therewith for releasing said brakemember from said operable engagement with said drum by the centrifuga] force caused by the rotation of said control means with said spool in an unwinding direction to thereby free said spool for reversal of said rotation to a winding direction, said control means being restrained by the inertia thereof from moving said brake member into operable engagement with said drum during the reversal of said rotation and said control means being efbrake member with said drum by the centrifugal .force on said control means caused by the rotation of said spool in said winding direction when the speed of said last named rotation exceeds a predetermined amount to thereby retard said last named rotation.

6. A reel for a iiexible member wound thereon, comprising a spindle, a spool rotatably mounted on said spindle for turning in either a winding or an unwinding direction, a drum connected to said spindle, a brake member carried by said spool and adapted to be moved into operable engagement with said drum to thereby hold said spool in a predetermined unwound position when said spool is stationary in said position, spring means for urging said brake member into said operable engagement with said drum when said spool is in said peredetermined position, control means connected to said brakemember and rotatable with' said spool for releasing saidbrake member from said operable engagement' with said'drum by the centrifugal force on said control member caused by the rotation of said control member with said spool` in an unwinding direction to thereby free said spool for reversal oi said rotation to a Winding direction, and means connected to said control member for yieldably restraining said control member from moving said brake member into operative engagement with said drum during said reversal of said rotaion, and means carried by said control member for moving said brake member into engagement with said drumby the centrifugal force on said control member caused by the rotation of said control member with said spool in said Winding direction to thereby retard said last named rotation when the speed of said last named rotation is greater than a predetermined amount.

7. A reel for a flexible member Wound thereon, comprising a spindle, a spool rotatabiy mounted on said spindle for turning in either a winding or an unwinding direction, a drum connected to said spindle, a brake member carried by said spool and adapted to be moved into operable engagement with said drum to thereby hold said spool in a predetermined unvvound position when said spool is stationary in said position, spring means for urging said brake member into said operable engagement with said drum when said spool is in said predetermined position, control means connected to said brake member and rotatable with said spool for releasing said brake member from said operable engagement with said drum by the centrifugal force on said control member caused by the rotation of said control member with said spool in an unvvinding direction to thereby free said spool for reversal of said rotation to a vvinding direction, and a dash pot operatively-connected to said control member for yieldingly restraining said brake member from moving into operative engagement with said drum during said reversal of said rotation, and means carried by said control member for moving said brake member into engagement with said drum by tne centrifugal force on said control member caused by the rotation of said control member with said spool in said Winding direction to thereby retard said last named rotation when the speed of said last named rotation is greather than a predetermined amount.

8. A reel comprising a spindle, a spool rotatably mounted on said spindle for turning in either a winding or unwinding direction, a spring connected to said spool ior turning it in a winding direction, adrum connected to said spindle, tivo levers fulcrumed on said spool, eacn of said levers having a long end and a short end, each of said long ends including a counterweight, a tension spring vieldably connecting the long end of one of 'said levers to the short end of the other of said levers, a link connecting the short end-of one lever to the long end of said other lever, two friction elements, each of said friction elements being connected to a corresponding one of said levers, said tension spring being effective when said spool is stationary in a predetermined unvvound position to engage said friction element carried by said one lever with said drum to thereby hold said spool in said position, said levers being operable by the centrifugal force caused by the rotation of said counterweights with said spool in an unwinding'direction to move the corresponding friction elements out of engagement with said drum to thereby free said spool for reversal of said rotation to a winding direction,

a dash pot operatively connected between said long end of said one lever and said short end of said other lever, said dash pot being effective to restrain the movement of said countervveights and said friction elements toward said drum during said reversal of rotation, and said levers being operable by the centrifugal force caused by the rotation of said counterweights with said spool to move the corresponding friction elements into engagement with said drum to thereby retardthe rotation of said spool when the speed. of said rotation exceeds a predetermined amount.

9. An air hose reel comprisingv a spindle, a spool upon which an air hose may be wound, said spool being rotatably mounted on said spindle for turning in either a Winding or unwinding direction, a spring connected to said spool for urging said spool to turn in a winding direction, brake means carried by said spool for releasably 'holding said spool against turning in a winding direction from a partially unvvound position, said brake means being adapted to be released by tension in an unwin'ding direction on such a hose Wound on said spool to thereby free said spool for turning in a Winding direc' tion, and a release lever carried by said spool and adapted to engage said brake means and an inner convolution of suchv a hose Wound on said spool, said release lever being operable to render said brake means ineffective to hold said spool against turning in a Winding direction when more than a predetermined amount of such a hose has been unwound from said spool.

l0. An air hose reel comprising a spindle; a spool upon whichan air hose may be Wound, said spool being rotatably mounted on said spindle for turning in either a Winding or unwinding direction, av spring connected to said spool'for urging said spool to turn in a Winding direction, a brake lever fulcrumed on said spool andy carried thereby for rotation therewith, a drum stationarilyV mounted relative to said spindle, a brake shoe carried by said brake lever and adapted to operatively engage said drum'for releasably holding said spool against turning in a Winding direction from a partially unwound position, means connected to said brake lever for urging said brake shoe into said operative engagement with said drum, said brake shoe being adapted to be released from operative engagement with said drum by tension in an unwinding direction on such a hose Wound on said vspool to thereby free said spool for turning in a Winding direction, and a release lever carried by said spool and engageable With said brake lever and with an inner convolution of such a hose Wound on said spool, said release lever being effective to pivot said brake vlever against the urging of said means connected thereto to thereby prevent said brake shoe from operatively engaging said drum and holding said spool against turning in a Winding direction when more than a predetermined amount of such a hose is unvvound from said spool.

l1. An air hose reel comprising a spool upon which an air hose may be Wound, a spindle, said spool being rotatably mounted on said spindle for turning in either a winding or an unwinding direction, means for urging said spool to turn in a Winding direction, brake means carried by said spool for releasably holding said spool from turning` in a Winding direction from a partially unvvound position, and means connected to said spool andsaid brake means for releasing, said brake means by tension in an unwinding direction on such a hose wound on said spool to thereby free said spool for turning in a winding direction, said last-named means being operable to partially apply said brake means to retard the rotation of said spool when said rotation exceeds a predetermined speed.

12. In an air hose reel of the type including a spindle, a spool upon which an air hose may be Wound, said spool being rotatably mounted on said spindle for turning in either a winding or an unwinding direction and having an externally threaded hub portion, and brake means carried by saidspool for releasably holding said spool from turning in a winding direction from a partially unwound position, means connected to said spindle and operable to feed compressed air from a supply source to such a hose on said reel when said reel is in such a partially unwound position, a nut operatively engaged with the threads on said hub and movable thereby longitudinally of said hub into and out of operative engagement with said means during rotation of said spool, said nut being operable during movement longitudinally of said hub to actuate said means to thereby vary the feeding of compressed air by said means.

13. A reel for holding a flexible member wound thereon, comprising a spindle, a spool rotatably mounted on said spindle for turning in either a winding or an unwinding direction, a drum connected to said spindle, a brake member carried by said spool and adapted to operably engage said drum when said spool is stationary in a predetermined position to hold said spool in said position, means for urging said brake member into operable engagement with said drum when said spool is in said predetermined position, and control means connected to said brake member and rotatable with said spool for controlling the operation of said brake member, said control means comprising a pivot connected to said spool and rotatable therewith, and an elongated arm rotatably mounted on said pivot, said arm being responsive to centrifugal force and rotatable thereby on said pivot through a predetermined path of movement upon rotation of said spool, means on said arm operatively connecting said arm to said brake member during movement of said arm through a predetermined portion of said path of movement for urging said brake member away from said engagement with said drum during movement of said arm through said predetermined portion of said path of movement, and means on said arm operatively connecting said arm to said brake member during movement of said arm through a portion of said path of movement other than said predetermined position for urging said brake member toward engagement with said drum during movement of said arm through said portion of said path of movement other than said predetermined portion.

l4. A reel comprising a spindle, a spool rotatably mounted on said spindle for turning in either a winding or unwinding direction, a spring connected to said spool for turning it in a wind- 18 ing direction, a drum connected to said spindle, two levers fulcrumed on said spool, each of said levers having a long end and a short end, each of said long ends including a counterweight, a tension spring yieldably connecting the long end of one of said levers to the short end of the other of said levers, a link connecting the short end of said one lever to the long end of said other lever, two friction elements, each of said friction elements being connected to a corresponding one of said levers, said tension spring being effective when said spool is stationary in a predetermined unwound position to engage said friction element carried by said one lever with said drum to thereby hold said spool in said position, said levers being operable by the centrifugal force caused by the rotation of said counterweights with said spool in an unwinding direction to move the corresponding friction elements out of engagement with said drum to thereby free said spool for reversal of said rotation to a winding direction, and said levers being operable by the centrifugal force caused by the rotation of said counterweights with said spool to move the corresponding friction elements into engagement with said drum to thereby retard the rotation of said spool when the speed of said rotation exceeds a predetermined amount.

15. An air hose reel comprising a spindle, a. spool upon which an air hose may be Wound, said spool being rotatably mounted on said spindle for turning in either a winding or unwinding direction, a spring connected to said spool for urging said spool to turn in a winding direction, a brake lever fulcrumed on said spool and carried thereby for rotation therewith, a drum stationarily mounted relative to said spindle, a brake shoe carried by said brake lever and adapted to operatively engage said drum for releasably holding said spool against turning in a winding direction from a partially unwound position, means connected to said brake lever for urgingy said brake shoe into said operative engagement with said drum, said brake shoe being adapted to be released from operative engagement with said drum by tension in an unwinding direction on such a hose Wound on said spool to thereby free said spool for turning in a Winding direction, and said lever being operable by the centrifugal force caused by the rotation of said lever with said spool to move said brake shoe into engagement with said drum to thereby` retard the rotation of said spool when the speed of said rotation exceeds a predetermined amount.

WILLIAM P. DALRYMPLE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date y 1,188,072 Hein June 20,1916 1,376,262 Denny' Apr. 26, 1921 1,881,589 Horton Oct. 11, 1932 1,948,158 Barr Feb. 20, 1934 1,950,833 Woodford Mar. 13, 1934 

